• Chemistry
  • Published 2013

Note Ecofriendly bromination of chalcones and synthesis of flavones using grinding technique

@inproceedings{Jakhar2013NoteEB,
  title={Note Ecofriendly bromination of chalcones and synthesis of flavones using grinding technique},
  author={Komal Jakhar and J. K. Makrandi},
  year={2013}
}
Selective bromination of chalcones and 2'-hydroxychalcones has been carried out with ammonium bromide and ammonium persulphate using grinding technique at RT under aqueous moist condition to give α,β-dibromochalcones and α,β-dibromo-2'hydroxychalcones respectively. α,β-Dibromo-2'-hydroxychalcones have been cyclodehydrobrominated with barium hydroxide moist and ethanol at RT to give flavones using grinding technique. 

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